html,body{
    width: 100%;
    height: 100%;
}
.clearfix:after{
    content: '';
    display: block;
    clear: both;
    height: 0;
}
header{
    width: 100%;
    height: 80px;
    background-color:darkcyan;
    line-height: 80px;
    
}
header img{
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 1px solid #000;
    margin-left: 40px;
    margin-bottom: 16px;
    vertical-align: middle;
}

header span{
    font-size: 30px;
    color: white;
    font-weight: bold;
    margin-left: 10px;
}
header .uname{
    font-size: 20px;
    font-weight: normal;
}
header button{
    width: 80px;
    height: 30px;
    color: white;
    background-color: rgb(7, 70, 70);
    border: 0 solid #000;
    line-height: 30px;
    border-radius: 5px;
    margin-left: 20px;
    vertical-align: text-bottom;
}

.container{
    display: flex;
    justify-content: space-between;
    height: 100%;
}
.container .left{
    /* float: left;*/
    width: 200px;
    /* height: 100%;  */
    /* position: absolute;
    top: 80px;
    left: 0px; */
    border-right: 1px solid gray;
    background-color: rgb(227, 237, 238);
}
.container .left h2{
    font-size: 20px;
    color: white;
    font-weight: normal;
    line-height: 50px;
    padding-left: 20px;
    border-bottom: 1px solid gray;
    border-top: 1px solid black;
    background-color: darkcyan; 
}
.container .left h3{
    font-size: 18px;
    color: white;
    font-weight: normal;
    line-height: 50px;
    padding-left: 20px;
    border-bottom: 1px solid gray;
    /* border-top: 1px solid black;x */
    background-color: rgb(73, 184, 192); 
    cursor: pointer;
}
.container .left ul li{
    height: 30px;
    font-size: 16px;
    border-bottom: 1px solid gray;
    padding-left: 20px;
    line-height: 30px;
}
.container .left ul li a{
    color: black;

}


.container .right{
    /* float: left;
    width: 80%;*/
    height: 100%; 
    /* position: absolute;
    top: 80px;
    left: 200px; */
    flex: 1;
}
.container .right iframe{
    width: 100%;
    height: 100%;
}
.container .right .indexpage{
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    border-bottom: 1px solid gray;
    padding-left: 20px;
}

.container .right aside h3{
    font-size: 30px;
    /* width: 200px; */
    margin-top: 200px;
    margin-left: 400px;
}

.on{
    color: red;
    background-color: steelblue;
}


/************* 用户列表**** */
.container table{
    width: 1100px;
    /* height: 400px; */
    border: 1px solid gray;
    margin: auto;
    margin-top: 20px;
    border-spacing: 0;
    border-collapse: collapse;
    text-align: center;
    margin-bottom: 20px;
    font-size: 16px;
}
.container th,td{
    border: 1px solid #000; 
    height: 70px;
    width: 60px;
}
/* .container table tr td{
    height: 50px;
    width: 60px;
} */
.container table tr td img{
    width: 50px;
    height: 50px;
    margin-top: 5px;
}
#del{
    color: blue;
    cursor: pointer;
}

/* ***********添加用户************* */
.container .book-add-wrapper {
    margin: 0 auto;
    /* border: 1px solid gray; */
    padding: 20px;
    width: 550px;
    text-align: center;

}

.book-add-wrapper form {
    width: 550px;
    text-align: left;
    margin: auto;
    line-height: 36px;
}

.book-add-wrapper form label {
    font-size: 20px;
}

.container .book-add-wrapper .item {
    margin-top: 20px;
}

.container .book-add-wrapper .item input {
    height: 36px;
    width: 260px;
}

.container .book-add-wrapper .item span {
    color: red;
}

.container .book-add-wrapper #addbookbtn {
    font-size: 20px;
    width: 120px;
    height: 40px;
    color: white;
    border-radius: 5px;
    margin-top: 40px;
    margin-left: 150px;
    border: 0 solid #000;
    background-color: darkcyan;
}